The answer is 9, to find it just do inverse and in this case that is 12-3 and u should always get the answer
Answer:
y = (1/5)x² or y = x²/5
Step-by-step explanation:
We have the function f(x) = ax² and are given that the point (5,5) is on the parabola. We need to find 'a'. f(x) can be replaced with 'y', so we can rewrite the equation as...
y = ax²
We know that when x = 5, y = 5, so we have
5 = a(5²) now simplify...
5 = 25a
5/25 = a
1/5 = a, so our equation becomes
(1/5)x² or x²/5 (the expressions are equal)
Answer:
2 is the coefficient
Step-by-step explanation:
The teachers plan will raise money is 1.8 times the static graders plan.The teachers plan to raise a dollar is 5/6 times the static graders plan to raise a dollar.More dollars will be raised by the teachers plan compared to the static graders plan.
Step-by-step explanation:
In the question,
Let what the static graders plan to rise to be $x.
Let what the teachers plan to rise to be $ y
You understand that ;
y =210 +x ----------------(this is 210 dollars more than the static graders raise)
y=x+4/5 x -------------------(but only 4/5 as much as the static graders)
Solving the equations to get x and y
210+x=x+4/5x
5(210+x)=5*x+4x
1050+5x=5x+4x
1050=5x+4x-5x
1050=4x
1050/4=4x/4
x=$262.50
y=210+262.50=$472.50
Additionally, for every $60 raised in teachers plan, the static graders raise $50
This means in teachers plan 1$ raised equals 5/6$ raised in static plan
y=5/6x
Learn More
Fund raising comparison brainly.com/question/12421531
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